package com.veiga.sistema.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

import org.hibernate.SessionFactory;

import com.veiga.sistema.util.HibernateUtil;

public class ConexaoHibernateFilter implements Filter{

	private SessionFactory sf;

	@Override
	public void destroy() {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void doFilter(ServletRequest servelFilter, ServletResponse serveltResponse,
			FilterChain chain) throws IOException, ServletException {
		
				try {
					this.sf.getCurrentSession().beginTransaction();
					chain.doFilter(servelFilter, serveltResponse);
					this.sf.getCurrentSession().getTransaction().commit();
					this.sf.getCurrentSession().close();
				} catch (Throwable ex) {
					
					try {
						if(this.sf.getCurrentSession().getTransaction().isActive()){
							this.sf.getCurrentSession().getTransaction().rollback();
						}
						
						} catch (Throwable t) {
								t.printStackTrace();
						}
					throw new ServletException();
				}
				
		
					
	}

	@Override
	public void init(FilterConfig conf) throws ServletException {
			this.sf = HibernateUtil.getSession();
	}

		
}
